AD 67-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hiller Aviation | Siam Hiller Holdings, Inc. | UH-12D | Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters |
| aircraft | Hiller Aviation | Siam Hiller Holdings, Inc. | UH-12E | Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters |
Unsafe Condition
Failure of the attachment of cyclic control bracket P/N 3301-5 to the transmission housing P/N 23542 due to bolts with torque less than 50 inch-pounds or damaged Rosan inserts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect cyclic control bracket attachment bolts for torque less than 50 inch-pounds and visually inspect Rosan inserts for cracks or damage. Replace damaged inserts and inserts with insufficient bolt torque. Remove Rosan R206SB-8 inserts, install Roson RD206SB-8 inserts, and use MS20073-04-10 bolts as per Service Information Letter No. 3054.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours' time in service after the effective date of this AD for inspection and replacement actions; within the next 100 hours' time in service after the effective date for removing Rosan inserts and installing replacements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fairchild-Hiller Models UH-12D and UH-12E Helicopters with cyclic control bracket P/N 3301-5 and transmission housing P/N 23542.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Cyclic Control Bracket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_67-08-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-08-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters Subject: Cyclic Control Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/09/1967 Make: Hiller Aviation | Siam Hiller Holdings, Inc. Model: UH-12D | UH-12E Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 67-08-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-361 AD NUMBER: 67-08-03 SUBJECT HEADING: Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters ACTION: SUMMARY: DATES: Effective March 9, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-08-03 FAIRCHILD-HILLER: Amdt. 39-361 Part 39 Federal Register March 4, 1967. Applies to Models UH-12D and UH-12E Helicopters. Compliance required as indicated. To prevent failure of the attachment of cyclic control bracket P/N 3301-5 to the transmission housing P/N 23542, accomplish the following: (a) Within the next 10 hours' time in service after the effective date of this AD, unless already accomplished, inspect the cyclic control bracket attachment bolts for a torque of less than 50 inch-pounds and visually inspect the Rosan inserts in the transmission housing for cracks or any other damage. Replace damaged inserts and inserts where a bolt torque of less than 50 inch-pounds is encountered prior to further flight in accordance with Fairchild-Hiller Service Information Letter No. 3054 of November 4, 1966, or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (b) Within the next 100 hours' time in service after the effective date of this AD, unless already accomplished, remove the Rosan R206SB-8 inserts and install Roson RD206SB-8 inserts in their place and install MS20073-04-10 bolts in accordance with Fairchild-Hiller Service Information Letter No. 3054 of November 4, 1966, or later revisions approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. This directive effective March 9, 1967. FOOTER:
Document Text
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AD Final Rules - DRS_67-08-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-08-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters Subject: Cyclic Control Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/09/1967 Make: Hiller Aviation | Siam Hiller Holdings, Inc. Model: UH-12D | UH-12E Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 67-08-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-361 AD NUMBER: 67-08-03 SUBJECT HEADING: Airworthiness Directives; Fairchild-Hiller Models UH-12D and UH-12E Helicopters ACTION: SUMMARY: DATES: Effective March 9, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-08-03 FAIRCHILD-HILLER: Amdt. 39-361 Part 39 Federal Register March 4, 1967. Applies to Models UH-12D and UH-12E Helicopters. Compliance required as indicated. To prevent failure of the attachment of cyclic control bracket P/N 3301-5 to the transmission housing P/N 23542, accomplish the following: (a) Within the next 10 hours' time in service after the effective date of this AD, unless already accomplished, inspect the cyclic control bracket attachment bolts for a torque of less than 50 inch-pounds and visually inspect the Rosan inserts in the transmission housing for cracks or any other damage. Replace damaged inserts and inserts where a bolt torque of less than 50 inch-pounds is encountered prior to further flight in accordance with Fairchild-Hiller Service Information Letter No. 3054 of November 4, 1966, or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (b) Within the next 100 hours' time in service after the effective date of this AD, unless already accomplished, remove the Rosan R206SB-8 inserts and install Roson RD206SB-8 inserts in their place and install MS20073-04-10 bolts in accordance with Fairchild-Hiller Service Information Letter No. 3054 of November 4, 1966, or later revisions approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. This directive effective March 9, 1967. FOOTER:
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Retrieved: Apr 8, 2026
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